- Periodic table (valence)
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Periodic table (valence)
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Periodic table — This article is about the periodic table of the elements . For other uses, see The Periodic Table. The periodic table of the chemical elements (also known as the periodic table or periodic table of the elements) is a tabular display of the 118… … Wikipedia
periodic table — /pear ee od ik, pear /, Chem. a table illustrating the periodic system, in which the chemical elements, formerly arranged in the order of their atomic weights and now according to their atomic numbers, are shown in related groups. [1890 95] * * * … Universalium
History of the periodic table — The history of the periodic table reflects over a century of growth in the understanding of chemical properties, and culminates with the publication of the first actual periodic table by Dmitri Mendeleev in 1869.[1] While Mendeleev built upon… … Wikipedia
Extended periodic table — There are currently seven periods in the periodic table of chemical elements, culminating with atomic number 118. If further elements with higher atomic numbers than this are discovered, they will be placed in additional periods, laid out (as… … Wikipedia
Period (periodic table) — In the periodic table of the elements, a period is a horizontal row of the table.The elements are laid out in a series of rows so that those with similar properties line up in vertical columns: this reflects the periodic recurrence of similar… … Wikipedia
periodic law — /pear ee od ik, pear /, Chem. 1. the law that the properties of the elements are periodic functions of their atomic numbers. 2. Also called Mendeleev s law. (originally) the statement that the chemical and physical properties of the elements… … Universalium
Table de Mendeleïev — Tableau périodique des éléments Pour les articles homonymes, voir Tableau. Le tableau périodique des éléments, également appelé table de Mendeleïev, classification périodique des éléments (CPE) ou simplement tableau périodique, représente tous… … Wikipédia en Français
Table périodique — Tableau périodique des éléments Pour les articles homonymes, voir Tableau. Le tableau périodique des éléments, également appelé table de Mendeleïev, classification périodique des éléments (CPE) ou simplement tableau périodique, représente tous… … Wikipédia en Français
Table périodique des éléments — Tableau périodique des éléments Pour les articles homonymes, voir Tableau. Le tableau périodique des éléments, également appelé table de Mendeleïev, classification périodique des éléments (CPE) ou simplement tableau périodique, représente tous… … Wikipédia en Français
Valence (chemistry) — For other uses, see Valence (disambiguation). In chemistry, valence, also known as valency or valence number, is a measure of the number of bonds formed by an atom of a given element. Valence can be defined as the number of valence bonds[1] a… … Wikipedia
